The PyPrepar3D project aims to provide a high level python api to Lockeed Martin´s Prepar3D SDK. The Docuentation for the C/C++ SDK can be found at http://www.prepar3d.com/SDKv2/LearningCenter/LearningCenter.php.
Furthermore, it includes additional modules (e.g. binding to http://www.flightradar24.com) to help you developing your Prepar3D addons.